1 files changed, 110 insertions, 0 deletions
diff --git a/src/com/gitblit/utils/StringUtils.java b/src/com/gitblit/utils/StringUtils.java
new file mode 100644
index 00000000..6d646df8
--- /dev/null
+++ b/src/com/gitblit/utils/StringUtils.java
@@ -0,0 +1,110 @@
+package com.gitblit.utils;
+
+import java.io.UnsupportedEncodingException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.List;
+
+public class StringUtils {
+	
+	public static boolean isEmpty(String value) {
+		return value == null || value.trim().length() == 0;
+	}
+
+	public static String breakLinesForHtml(String string) {
+		return string.replace("\r\n", "<br/>").replace("\r", "<br/>").replace("\n", "<br/>");
+	}
+
+	public static String escapeForHtml(String inStr, boolean changeSpace) {
+		StringBuffer retStr = new StringBuffer();
+		int i = 0;
+		while (i < inStr.length()) {
+			if (inStr.charAt(i) == '&') {
+				retStr.append("&amp;");
+			} else if (inStr.charAt(i) == '<') {
+				retStr.append("&lt;");
+			} else if (inStr.charAt(i) == '>') {
+				retStr.append("&gt;");
+			} else if (inStr.charAt(i) == '\"') {
+				retStr.append("&quot;");
+			} else if (changeSpace && inStr.charAt(i) == ' ') {
+				retStr.append("&nbsp;");
+			} else if (changeSpace && inStr.charAt(i) == '\t') {
+				retStr.append(" &nbsp; &nbsp;");
+			} else
+				retStr.append(inStr.charAt(i));
+			i++;
+		}
+		return retStr.toString();
+	}
+
+	public static String flattenStrings(List<String> values) {
+		StringBuilder sb = new StringBuilder();
+		for (String value : values) {
+			sb.append(value).append(" ");
+		}
+		return sb.toString().trim();
+	}
+
+	public static String trimString(String value, int max) {
+		if (value.length() <= max) {
+			return value;
+		}
+		return value.substring(0, max - 3) + "...";
+	}
+
+	public static String trimShortLog(String string) {
+		return trimString(string, 60);
+	}
+
+	public static String leftPad(String input, int length, char pad) {
+		if (input.length() < length) {
+			StringBuilder sb = new StringBuilder();
+			for (int i = 0, len = length - input.length(); i < len; i++) {
+				sb.append(pad);
+			}
+			sb.append(input);
+			return sb.toString();
+		}
+		return input;
+	}
+
+	public static String rightPad(String input, int length, char pad) {
+		if (input.length() < length) {
+			StringBuilder sb = new StringBuilder();
+			sb.append(input);
+			for (int i = 0, len = length - input.length(); i < len; i++) {
+				sb.append(pad);
+			}
+			return sb.toString();
+		}
+		return input;
+	}
+
+	public static String getSHA1(String text) {
+		try {
+			byte[] bytes = text.getBytes("iso-8859-1");
+			return getSHA1(bytes);
+		} catch (UnsupportedEncodingException u) {
+			throw new RuntimeException(u);
+		}
+	}
+
+	public static String getSHA1(byte[] bytes) {
+		try {
+			MessageDigest md = MessageDigest.getInstance("SHA-1");
+			md.update(bytes, 0, bytes.length);
+			byte[] sha1hash = md.digest();
+			StringBuilder sb = new StringBuilder(sha1hash.length * 2);
+			for (int i = 0; i < sha1hash.length; i++) {
+				if (((int) sha1hash[i] & 0xff) < 0x10)
+					sb.append("0");
+				sb.append(Long.toString((int) sha1hash[i] & 0xff, 16));
+			}
+			return sb.toString();
+		} catch (NoSuchAlgorithmException t) {
+			throw new RuntimeException(t);
+		}
+	}
+
+}